1167312171 has 8 divisors (see below), whose sum is σ = 1557071424. Its totient is φ = 777880520.

The previous prime is 1167312151. The next prime is 1167312193. The reversal of 1167312171 is 1712137611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1167312171 - 2⁹ = 1167311659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1167312151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73461 + ... + 87926.

It is an arithmetic number, because the mean of its divisors is an integer number (194633928).

Almost surely, 2^1167312171 is an apocalyptic number.

1167312171 is a deficient number, since it is larger than the sum of its proper divisors (389759253).

1167312171 is a wasteful number, since it uses less digits than its factorization.

1167312171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163801.

The product of its digits is 1764, while the sum is 30.

The square root of 1167312171 is about 34165.9504624121. The cubic root of 1167312171 is about 1052.9207179788.

Adding to 1167312171 its reverse (1712137611), we get a palindrome (2879449782).

The spelling of 1167312171 in words is "one billion, one hundred sixty-seven million, three hundred twelve thousand, one hundred seventy-one".